let movies= [{
    video: 'http://vt1.doubanio.com/201903291546/2d2616429a23f66bc227c250f4b03e49/view/movie/M/402400074.mp4',
    doubanId:'3878007',
    poster:"https://img3.doubanio.com/view/photo/l_ratio_poster/public/p2529571873.jpg",
    cover: '"https://img1.doubanio.com/img/trailer/medium/2541280237.jpg?"' 
}]